Slug detector



.1. H. GxEsKE SLUG DETECTOR Oct. 15, 1929.

Filed Aug. 12, 1927 2 Sheets-Sheet 31a/vanto@ Josnm 1I. GIESKE Oct. 15, 1929. J. H. GlEsKE 1,732,161 I SLUG DETECTOR Filed Aug. 12, 1927 2 Sheets-Sheet 2 31a/vento@ JosEPH H. GmsKE Patented UCL l5, 1929 UNITED STATES JOSEPH II. GIESKE, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-THIRD TO EUGENE j l PATENT oFFIcr:

F. RODDY, OF ST. PAUL, MINNESOTA SLUG DETECTOR.

Application filed August 12,1927. Serial No. 212,464.l

My invention relates to slug detectors wherein it is designed to provide a simple, yet very effective means of detecting slugs for money slot machines or for any machine 5 using coins for operating the same.

It is a feature of my invention to provide a means having a primary and a secondary testing mechanism sol as to detect a slug befor the same enters the coin machine, thus preventing the operation of the coin machine by either a light or a heavy slug and virtually preventing the operation of the coin 01perating machine by anything except proper coin for that particular machine.

My detector is provided with a means of locking the same to prevent operation by jarring or tampering when a slug has beenused in the detector. The primary and important feature of my detector includes a means and mechanism for insuring the detecting of slugs and preventing them from entering the coin machine.

These features together with other objects v and details of the invention will be more fully and clearly set forth in the specication and claims.

In the drawings forming part of this specification:

Figure 1 is a sectional front view of my detector as it would appear in use, the front face of the cover being removed. Y

Figure 2 is an end View of the same.

Figure 3 is an end view showing the cover of the detector removedto illustrate the parts within the detector. Y Y I Figure 4 is a plan view of my detector.

Figure 5 is a front view showing the parts in a different position.

Figure 6 is a detail tector.

In the drawings my detector A is provided with a cylindrical housing or casing 10 which is adapted to be supported by the brackets 11 in a suitable manner attached rigidly to the coin machine B, only a portion of the coin machine B being illustrated in the drawings.

The casing 10 is provided with va door 12 on one side of the same whichis adapted to fit of a portion ofthe dethrough the staple 13 to hold the door closed.

Obviously any suitable locking meansmay be provided for the'cover 12.

The'slug detector A is provlded with a priarm 14 is providedv with an adjustable balance Weight 16 carried on the screw 17 which is supported by the bracket 18 to the arm 14.

yThe other end of the balanceV arm 14 is provided withja coin receiving slot 19 extending through the guard plate 20 which projects upwardly from the coin receiving end of the balance C. Normally the balance C has its arm 14 extending in the position illustrated in Figure 1 with the weight end resting against the 'lug 21 and depending from the pivot point 15 while the coin receiving end projects upwardly so that the slot 19 coincides with the slot`22 in the outer front face of the casing 10 so as to receive a coin through the slot 22 of the casing and through the slot 19 to the coin receiving end of the balance C.

I provide a secondary balance I) in the detector A which is pivotally attached at 24 to the ears 25 and is provided with a chute-like portion 26 in which the coins are adapted to slide in passing over the secondary balance D. This secondary balance D is provided with an adjustable weight member on the screw 27 which is supported bythe arm 28 so that the same can be properly balanced for the desired coin.

When the balance C receives a coin or a slug which is of the proper weight to operate i it it will drop automatically into position to bring the slot 19 in line withvthe slot 29 in the back wall of the casing 10 and this slot 29 is in line with the yopening of the chute 26 so that the coin carried by the balance C may be E pushed from the balance through the slot 29 on to the chute 26. v

The coin machine B, only a. portion of which is illustrated, is provided with a coin receiving end 3() having a coin opening 31. The coin detector A is attached to the coin machine B in a manner so as to cause the chute 26 to be positioned so that when a coin slides down the chute 26 it is adapted to drop into the opening 31 and from there into the coin machine B so as to operate the same.

I have provided a shelf 32 adjacent the free end of the chute 26 so as to provide a means of receiving a slug which is too heavy for the setting of the balance D toprevent the slug from sliding into the opening 31 `as it is heavier than the coin for which the balance D is set. This secondary balance Dis adaptedttobe set'so-as to remain in positionto slide the proper Weight coin *for operating thermachine B directly into the opening 31, however, if a slug of a heavier nature than the coin enters the chute 26, the free end ofthe chute 26 will immediately drop to'deposittheslug on the shelf 32 and stop the operation of the detector. The proprietor or owner of the machine B may then open the cover 12 and removethe slug romthe shelf'32.

The detector A is provided With a'locking means E Whichfis ,pivotally'supported on the back of the casingO/by the rod'35r. This rod is supported to the casing'and the locking means E is-covereiilloyY a suitable casing portion projecting over the same. The locking means E is in the vform of a rod bent With a center eye portion'3`6 which lits over the up- Wardlyprojecting end of the rod 35 to pivotally supprt'thelock and one end of the'lock is provided with an arm 37`having inwardly projecting lugs B8 adapted to be normally positioned as illustrated'inFigure l adjacent the openin'gBQ so that the end 88V mayzproject into *the opening 39 and engage with the Weight end oi? the balancearmlla. The other end of the lock E is provided with an arm 40 which is formed with an inwardly projecting portion l1' extending through the slot 42 into the casing 10 and the portion 41 is provided With an upwardly exten-ding arcuated end '43. l ,l i l Y l`When the balance C'is Operated'by aacoin in the normal ordinary manner, the balance arm With'the slot 19 drops down toline lup with the slot29 vand as the balance drops by the Weight of the proper coin the'end 43 of the lock yE is engaged and the lockis dropped to permit the'balaneeC to operate properly With ia coin so that the coin'ma'y be pushed from the operating end of the balance throughthe slot 2'9and on tothe chute 26. I-Iovvever, if aslug` is inserted through the slot 22 andthe slot I19 on tothe Ybalance C which is 'toollight,thebalance C will notbe operated.

Ifprovide a coin "pusher'arm 46 Whi'chextends inline lWit-htheslot 29 Vand 4Which `is adapted to be pushed inwardly-to operate the detector A When the-balance 4C receives the coin through the slot 22. Thu'swhen alight coin is placedy on vthe ybalance@ it will not operate the Asame and when the" operator who has placed the coin on the balance C operates the -coin pusher arm 46,'the same Will strike the arcuated portion 43 of thelocking means E causing the lug 38 of the same to pass through the opening 39 and engage the balance arm 14 to lock the same against operation by jarring or tampering. It is then necessary for the proprietor to open the cover 12 and remove the slug before the detector can be cleared just asis true When too heavy a slug is received in the machine and it comes upto the secondary balance D as is hereinbefore described.

lIhe'detec'torAAis of a simple construction and can be adapted to any coin operating mavchines'o as to cover the coin receiving slot ance C to drop the slugs-intoline'with the slot f 29 but-'the detector-balance D will stop/the slug Vfrom enteringfthe coin machine opening l'byidropping-the,balance D so' that the slug Will strike on the shelf32. In'this manner I have provided faljslug detector havingA a double assurance `of picking up light and heavyprslugs and including balancing means Which Ais adjustable'to the desired coin so as to give Aan operative device of a very practical natu-re.

'In .accordance with the patent statutes, VI have described the principles of operation of myslug detectorand While' I have illustrated inthe drawingpwaparticular 'formation and constructionof'the parts, together with a certain design of the same I desire to have-itun derstood lthat ordinary changes may be made Within the scope of the following claims Without departingtrom-the spirit oi' my invention. y

I claim: j y,

1. A slug detector including, ak primary and a secondary .balancing means adapted'to detect light and jheavy slugs and manual means for transferring objects from Asaid primaryto said secondary balancingmeans.

l2.A slug @detector including a balancing member, means for adjusting said balancing member, a coinslotv to sai'dbalance, asecondary balance, a coin slot tosaid secondary balaneeand a coin zpusher adapted to4 push Y the coin from said rst-balance to said secondary balance to cause the coin to be balanced through lthe ldete'ctor --befo're `entering a coin operated machine. v

3. Adetector for slugs adaptedto beattached to a coin machine including, a lprimary balance, meansfor adjusting said balance, a secondaryfbalance, means for adjusting said secondarybala-nce and outside coiny openings to said first and secondary balances to permit a coin to be passed from the first balance to the second balance to provide a double Weighing of the coin to detect slugs.

4. A 'detector for coin operated machines including, means set to balance to the lightest Weight of coin that may be used, means set to balance for the heaviest coin that may be used in the operation of the coin machine,

lWhereby a light or heavy Weight coin may be detected to eliminate slugs from entering the coin machine and manually operated transferring means between said balancing means.

5. A detector for slugs comprising an adjustable balance for light Weight coins, an adjustable balance for heavy Weight coins and a lock adapted to lock said light Weight balance to prevent operation of the same When a light Weight imitation coin is inserted in said detector.

6. A detector for a coin operated machine adapted to eliminate slugs including means adapted to detect a light Weight slug, means adapted to detect a heavy Weight slugto prevent the same from entering the coin machine and means to prevent further operation of the machine When a light Weight slug is placed in said light Weight slug detecting means.

7 A 'detector for coin operated machines including, a casing, a coin receiving balance Within said casing, an adjustable balance Weight, a secondary balance associated With said casing and first balance adapted to provide a coin chute for receiving coins from 'said first balance, an adjustable balance Weight for said secondary balance, a shelf adjacent the free end of said secondary balance adapted to receive articles from said chute balance too heavy for the operation of the coin machine and looking means Jfor said first mentioned balance.

8. A slug detector for coin operated machines including, a primary and secondary balance, adjustable means for each of said balances, connecting slots, a lock for said lirst balance, a guar'd carried by said first balance adapted to close the receiving slot of said detector, said iirst balance being adapted to detect light Weight slugs and said second balance being adapted to detect heavy slugs.

9. A slug detector including, a housing, a balance receiver Within said housing, a slot leading to the receiving end of said balance, a guard for closingsaid slot When said balance is operated, a second slot adapted to be in line With said receiving end of said balance When said balance is operated, a

guard carried by said balance member, a secondary balance adjacent the free end of said first balance adapted to detect heavy Weight slugs, a lock pivotally interposed betWeen said balances having means adapted to operate the same to loclr said first balance against operation When a light Weight slug is applied thereto in the operation of said detector.

11. A slug detector including, a primary balance adapted to detect light Weight slugs, a secondary balance associated With said irst balance adapted to detect heavy slugs, means for balancing said balance members, a coin pusher, a locking means for interrupting the operation of said kprimary balance, said locking means including an arm intersecting the path of operation of said coin pusher, Whereby said locking means is operated by said coin pusher to lock said primary balance When alight Weight coin or slug is introduced into said detector.

l2. A slug detector comprising, means for detecting light Weight slugs, means for locling said detecting means When a light Weight slug is inserted therein, and a door for access to said detector to remove the light Weight slug and to reset the operating parts of said detector.

13. A detector including, means for detecting a light Weight slug, means for detecting a heavy Weight slug, and a lock adapted to be operated to hold said means for detecting a light Weight slug inoperative When a light Weight slug is inserted in said detector and the detector is operated.

JOSEPH H. GIESKE.

secondary balance adjacent said second slot, f

and a shelf adjacent the free end of said secondary balance to receive heavy slugs carried from the first to the second balance.

10. A slug detector comprising, a housing, a balance member Within said housing adapted to be set to detect a light Weight slug, a 

